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Medium modification of jet fragmentation in Au+Au collisions at √sNN=200 GeV measured in direct photon-hadron correlations

  • A. Adare
  • , S. Afanasiev
  • , C. Aidala
  • , N. N. Ajitanand
  • , Y. Akiba
  • , R. Akimoto
  • , H. Al-Bataineh
  • , H. Al-Ta'Ani
  • , J. Alexander
  • , A. Angerami
  • , K. Aoki
  • , N. Apadula
  • , L. Aphecetche
  • , Y. Aramaki
  • , R. Armendariz
  • , S. H. Aronson
  • , J. Asai
  • , H. Asano
  • , E. C. Aschenauer
  • , E. T. Atomssa
  • R. Averbeck, T. C. Awes, B. Azmoun, V. Babintsev, M. Bai, G. Baksay, L. Baksay, A. Baldisseri, B. Bannier, K. N. Barish, P. D. Barnes, B. Bassalleck, A. T. Basye, S. Bathe, S. Batsouli, V. Baublis, C. Baumann, S. Baumgart, A. Bazilevsky, S. Belikov, R. Belmont, R. Bennett, A. Berdnikov, Y. Berdnikov, A. A. Bickley, X. Bing, D. S. Blau, J. G. Boissevain, J. S. Bok, H. Borel, K. Boyle, M. L. Brooks, H. Buesching, V. Bumazhnov, G. Bunce, S. Butsyk, C. M. Camacho, S. Campbell, P. Castera, B. S. Chang, W. C. Chang, J. L. Charvet, C. H. Chen, S. Chernichenko, C. Y. Chi, J. Chiba, M. Chiu, I. J. Choi, J. B. Choi, S. Choi, R. K. Choudhury, P. Christiansen, T. Chujo, P. Chung, A. Churyn, O. Chvala, V. Cianciolo, Z. Citron, C. R. Cleven, B. A. Cole, M. P. Comets, M. Connors, P. Constantin, M. Csanád, T. Csörgo, T. Dahms, S. Dairaku, I. Danchev, K. Das, A. Datta, M. S. Daugherity, G. David, M. B. Deaton, K. Dehmelt, H. Delagrange, A. Denisov, D. D'Enterria, A. Deshpande, E. J. Desmond, K. V. Dharmawardane, O. Dietzsch, L. Ding, A. Dion, M. Donadelli, O. Drapier, A. Drees, K. A. Drees, A. K. Dubey, J. M. Durham, A. Durum, D. Dutta, V. Dzhordzhadze, L. D'Orazio, S. Edwards, Y. V. Efremenko, J. Egdemir, F. Ellinghaus, W. S. Emam, T. Engelmore, A. Enokizono, H. En'Yo, S. Esumi, K. O. Eyser, B. Fadem, D. E. Fields, M. Finger, M. Finger, F. Fleuret, S. L. Fokin, Z. Fraenkel, J. E. Frantz, A. Franz, A. D. Frawley, K. Fujiwara, Y. Fukao, T. Fusayasu, S. Gadrat, K. Gainey, C. Gal, A. Garishvili, I. Garishvili, A. Glenn, H. Gong, X. Gong, M. Gonin, J. Gosset, Y. Goto, R. Granier De Cassagnac, N. Grau, S. V. Greene, M. Grosse Perdekamp, T. Gunji, L. Guo, H. A. Gustafsson, T. Hachiya, A. Hadj Henni, C. Haegemann, J. S. Haggerty, K. I. Hahn, H. Hamagaki, J. Hamblen, R. Han, J. Hanks, H. Harada, E. P. Hartouni, K. Haruna, K. Hashimoto, E. Haslum, R. Hayano, X. He, M. Heffner, T. K. Hemmick, T. Hester, H. Hiejima, J. C. Hill, R. Hobbs, M. Hohlmann, R. S. Hollis, W. Holzmann, K. Homma, B. Hong, T. Horaguchi, Y. Hori, D. Hornback, S. Huang, T. Ichihara, R. Ichimiya, J. Ide, H. Iinuma, Y. Ikeda, K. Imai, J. Imrek, M. Inaba, Y. Inoue, A. Iordanova, D. Isenhower, L. Isenhower, M. Ishihara, T. Isobe, M. Issah, A. Isupov, D. Ivanischev, B. V. Jacak, M. Javani, J. Jia, X. Jiang, J. Jin, O. Jinnouchi, B. M. Johnson, K. S. Joo, D. Jouan, D. S. Jumper, F. Kajihara, S. Kametani, N. Kamihara, J. Kamin, M. Kaneta, S. Kaneti, B. H. Kang, J. H. Kang, J. S. Kang, H. Kanou, J. Kapustinsky, K. Karatsu, M. Kasai, D. Kawall, M. Kawashima, A. V. Kazantsev, T. Kempel, A. Khanzadeev, K. M. Kijima, J. Kikuchi, B. I. Kim, C. Kim, D. H. Kim, D. J. Kim, E. Kim, E. J. Kim, H. J. Kim, K. B. Kim, S. H. Kim, Y. J. Kim, Y. K. Kim, E. Kinney, K. Kiriluk, A. Kiss, E. Kistenev, A. Kiyomichi, J. Klatsky, J. Klay, C. Klein-Boesing, D. Kleinjan, P. Kline, L. Kochenda, V. Kochetkov, Y. Komatsu, B. Komkov, M. Konno, J. Koster, D. Kotchetkov, D. Kotov, A. Kozlov, A. Král, A. Kravitz, F. Krizek, J. Kubart, G. J. Kunde, N. Kurihara, K. Kurita, M. Kurosawa, M. J. Kweon, Y. Kwon, G. S. Kyle, R. Lacey, Y. S. Lai, J. G. Lajoie, D. Layton, A. Lebedev, B. Lee, D. M. Lee, J. Lee, K. Lee, K. B. Lee, K. S. Lee, M. K. Lee, S. H. Lee, S. R. Lee, T. Lee, M. J. Leitch, M. A.L. Leite, M. Leitgab, E. Leitner, B. Lenzi, B. Lewis, X. Li, P. Liebing, S. H. Lim, L. A. Linden Levy, T. Liška, A. Litvinenko, H. Liu, M. X. Liu, B. Love, R. Luechtenborg, D. Lynch, C. F. Maguire, Y. I. Makdisi, M. Makek, A. Malakhov, M. D. Malik, A. Manion, V. I. Manko, E. Mannel, Y. Mao, L. Mašek, H. Masui, S. Masumoto, F. Matathias, M. McCumber, P. L. McGaughey, D. McGlinchey, C. McKinney, N. Means, M. Mendoza, B. Meredith, Y. Miake, T. Mibe, A. C. Mignerey, P. Mikeš, K. Miki, T. E. Miller, A. Milov, S. Mioduszewski, D. K. Mishra, M. Mishra, J. T. Mitchell, M. Mitrovski, Y. Miyachi, S. Miyasaka, A. K. Mohanty, H. J. Moon, Y. Morino, A. Morreale, D. P. Morrison, S. Motschwiller, T. V. Moukhanova, D. Mukhopadhyay, T. Murakami, J. Murata, T. Nagae, S. Nagamiya, Y. Nagata, J. L. Nagle, M. Naglis, M. I. Nagy, I. Nakagawa, Y. Nakamiya, K. R. Nakamura, T. Nakamura, K. Nakano, C. Nattrass, A. Nederlof, J. Newby, M. Nguyen, M. Nihashi, T. Niida, B. E. Norman, R. Nouicer, N. Novitzky, A. S. Nyanin, E. O'Brien, S. X. Oda, C. A. Ogilvie, H. Ohnishi, M. Oka, K. Okada, O. O. Omiwade, Y. Onuki, A. Oskarsson, M. Ouchida, K. Ozawa, R. Pak, D. Pal, A. P.T. Palounek, V. Pantuev, V. Papavassiliou, B. H. Park, I. H. Park, J. Park, S. K. Park, W. J. Park, S. F. Pate, L. Patel, H. Pei, J. C. Peng, H. Pereira, V. Peresedov, D. Yu Peressounko, R. Petti, C. Pinkenburg, R. P. Pisani, M. Proissl, M. L. Purschke, A. K. Purwar, H. Qu, J. Rak, A. Rakotozafindrabe, I. Ravinovich, K. F. Read, S. Rembeczki, M. Reuter, K. Reygers, R. Reynolds, V. Riabov, Y. Riabov, E. Richardson, D. Roach, G. Roche, S. D. Rolnick, A. Romana, M. Rosati, C. A. Rosen, S. S.E. Rosendahl, P. Rosnet, P. Rukoyatkin, P. Ružička, V. L. Rykov, B. Sahlmueller, N. Saito, T. Sakaguchi, S. Sakai, K. Sakashita, H. Sakata, V. Samsonov, M. Sano, S. Sano, M. Sarsour, S. Sato, T. Sato, S. Sawada, K. Sedgwick, J. Seele, R. Seidl, A. Yu Semenov, V. Semenov, A. Sen, R. Seto, D. Sharma, I. Shein, A. Shevel, T. A. Shibata, K. Shigaki, M. Shimomura, K. Shoji, P. Shukla, A. Sickles, C. L. Silva, D. Silvermyr, C. Silvestre, K. S. Sim, B. K. Singh, C. P. Singh, V. Singh, S. Skutnik, M. Slunečka, A. Soldatov, R. A. Soltz, W. E. Sondheim, S. P. Sorensen, M. Soumya, I. V. Sourikova, N. A. Sparks, F. Staley, P. W. Stankus, E. Stenlund, M. Stepanov, A. Ster, S. P. Stoll, T. Sugitate, C. Suire, A. Sukhanov, J. Sun, J. Sziklai, T. Tabaru, S. Takagi, E. M. Takagui, A. Takahara, A. Taketani, R. Tanabe, Y. Tanaka, S. Taneja, K. Tanida, M. J. Tannenbaum, S. Tarafdar, A. Taranenko, P. Tarján, E. Tennant, H. Themann, T. L. Thomas, T. Todoroki, M. Togawa, A. Toia, J. Tojo, L. Tomášek, M. Tomášek, Y. Tomita, H. Torii, R. S. Towell, V. N. Tram, I. Tserruya, Y. Tsuchimoto, T. Tsuji, C. Vale, H. Valle, H. W. Van Hecke, M. Vargyas, E. Vazquez-Zambrano, A. Veicht, J. Velkovska, R. Vértesi, A. A. Vinogradov, M. Virius, A. Vossen, V. Vrba, E. Vznuzdaev, M. Wagner, D. Walker, X. R. Wang, D. Watanabe, K. Watanabe, Y. Watanabe, Y. S. Watanabe, F. Wei, R. Wei, J. Wessels, S. N. White, D. Winter, S. Wolin, J. P. Wood, C. L. Woody, R. M. Wright, M. Wysocki, W. Xie, Y. L. Yamaguchi, K. Yamaura, R. Yang, A. Yanovich, Z. Yasin, J. Ying, S. Yokkaichi, Z. You, G. R. Young, I. Younus, I. E. Yushmanov, W. A. Zajc, O. Zaudtke, A. Zelenski, C. Zhang, S. Zhou, J. Zimányi, L. Zolin
  • Abilene Christian University
  • University of Colorado Boulder
  • Joint Institute for Nuclear Research, Dubna
  • Columbia University
  • MST-8, Los Alamos National Laboratory
  • UMass Amherst
  • University of Michigan, Ann Arbor
  • Stony Brook University
  • RIKEN Nishina Center for Accelerator-Based Science
  • Riken BNL Research Center
  • University of Tokyo
  • New Mexico State University
  • Kyoto University
  • Université de Nantes
  • Brookhaven National Laboratory
  • Ip Paris
  • Oak Ridge National Laboratory
  • Kurchatov Institute
  • Florida Institute of Technology
  • Institut Pierre Simon Laplace, CNRS and CEA
  • University of California, Riverside
  • University of New Mexico
  • Baruch College
  • Petersburg Nuclear Physics Institute (PNPI)
  • University of Münster
  • Vanderbilt University
  • St. Petersburg State Polytechnical University
  • Ohio University
  • Kurchatov Institute
  • Yonsei University
  • Academia Sinica, Institute Of Physics
  • High Energy Accelerator Research Organization (KEK)
  • University of Illinois at Urbana-Champaign
  • Chonbuk National University
  • Seoul National University
  • Bhabha Atomic Research Centre
  • Lund University
  • University of Tsukuba
  • Georgia State University
  • Université Paris-Saclay
  • Eötvös Loránd University
  • Hungarian Academy of Sciences
  • Florida State University
  • University of São Paulo
  • Iowa State University
  • Weizmann Institute of Science Israel
  • University of Maryland, College Park
  • Lawrence Livermore National Laboratory
  • Muhlenberg College
  • Charles University
  • Nagasaki Institute of Applied Science
  • Université Blaise Pascal
  • University of Tennessee
  • Augustana College
  • Hiroshima University
  • Ewha Womans University
  • Tsinghua University
  • Rikkyo University
  • Korea University
  • Japan Atomic Energy Agency
  • University of Debrecen
  • Myongji University
  • Waseda University
  • Hanyang University
  • Tokyo Institute of Technology
  • University of Jyväskylä
  • Czech Technical University in Prague
  • Institute of Physics of the Czech Academy of Sciences
  • China Institute of Atomic Energy
  • University of Zagreb
  • Banaras Hindu University
  • Institute for Nuclear Research of the Russian Academy of Sciences
  • Lahore University of Management Sciences

Research output: Contribution to journalArticlepeer-review

Abstract

The jet fragmentation function is measured with direct photon-hadron correlations in p+p and Au+Au collisions at √sNN=200 GeV. The pT of the photon is an excellent approximation to the initial p T of the jet and the ratio zT=pTh/pTγ is used as a proxy for the jet fragmentation function. A statistical subtraction is used to extract the direct photon-hadron yields in Au+Au collisions while a photon isolation cut is applied in p+p. IAA, the ratio of hadron yield opposite the photon in Au+Au to that in p+p, indicates modification of the jet fragmentation function. Suppression, most likely due to energy loss in the medium, is seen at high zT. The associated hadron yield at low z T is enhanced at large angles. Such a trend is expected from redistribution of the lost energy into increased production of low-momentum particles.

Original languageEnglish
Article number032301
JournalPhysical Review Letters
Volume111
Issue number3
DOIs
Publication statusPublished - 16 Jul 2013

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